Tearing apart the titanium sponge chokepoint

Titanium sponge.

Wall Street frames the Boeing and Airbus delivery backlogs as "production quality issues" or "supply chain normalization." CNBC shows the order chart and interviews an analyst who says "ramping up." If you've been reading this letter, you already know to ask the next question: ramping up with what, exactly?

Titanium sponge is the porous, reduced metallic form that sits between ore and airframe. Without it, no jet engine disc, no landing gear beam, no structural fastener on any commercial or military aircraft flying today. Every Boeing 787 is 15% titanium by weight — about 19 tonnes per plane. An F-35 runs north of 20%. These are not optional materials. There is no substitute at those stress loads and temperatures.

The United States has not produced a single tonne of aerospace-grade titanium sponge since the Henderson, Nevada plant shut down six years ago. The country imported approximately 44,000 tonnes last year — a near-record volume — almost entirely from Japan, Kazakhstan, and a Saudi-Japanese joint venture. And it built the most titanium-hungry aircraft fleet in history while doing it.

It's like designing a car that only runs on a fuel you stopped refining.

Story off. Diagram on.

Global titanium sponge production in 2024: 320,000 tonnes. China made 220,000 of them — 69% of the world total. Japan produced 55,000 tonnes, down from 57,000 the year before. Russia's USGS-estimated output sits around 33,000 tonnes, though EU trade data suggests actual volumes may be closer to 17,000. Kazakhstan and Saudi Arabia fill the rest.

Here's the number that matters. China's 220,000 tonnes is almost entirely Grade 1 or lower — commercial and industrial grade. Aerospace sponge requires Grade 0 purity, oxygen content of 0.06% or less. No Chinese capacity meets that standard. State media in Baoji — China's "titanium valley" — openly admit to an overcapacity crisis in low-grade sponge. The overcapacity is structural: low-end surplus, high-end shortage.

Western aerospace runs through exactly three certified source clusters: Japan (Osaka Titanium, Toho Titanium), Kazakhstan (UKTMP), and Saudi Arabia (AMIC Toho JV). Combined aerospace-qualified output in 2024: roughly 89,000 tonnes. Boeing and Airbus hold a combined backlog exceeding 16,000 aircraft — Airbus at 9,247 units as of May, Boeing at 6,807 as of April. That's more than ten years of production at current delivery rates.

Russia used to paper over this gap. VSMPO-AVISMA supplied up to 35% of Boeing's titanium and roughly 60% of Airbus's before 2022. Boeing severed the relationship in March 2022. Airbus dragged its feet, continued sourcing through subsidiaries, but has been reducing volumes since 2023. That lost supply — roughly 15,000 tonnes per year of qualified aerospace sponge — has not been replaced at scale.

Aerospace titanium demand is growing at 7.7% CAGR through 2028. The only major expansion on the qualified side — Osaka Titanium's ¥39 billion new plant — won't deliver a tonne until 2028 at the earliest. Demand is compounding into a fixed supply base. The arithmetic doesn't lie.

The gap is not closing. It's widening by about 7,000 qualified tonnes per year.

Two pressure points. Both are tightening at once.

First: China hasn't formally placed titanium on its export license list. Not yet. But critical metals export reviews have tightened steadily through 2025 and 2026 — gallium, germanium, antimony, graphite all got the treatment. China controls 69% of sponge production and 34% of primary titanium minerals. If Beijing runs the same playbook on titanium, the Western supply chain doesn't have a workaround. Japan's sponge producers — the ones the US depends on for 73% of imports — source 100% of their feedstock from abroad. Much of it transits through or originates in China. The ore chain and the sponge chain are not independent systems. They are the same pipe.

Second: the fraud signal. In 2024, the FAA opened an investigation after counterfeit titanium — sourced from a Chinese supplier, sold through Turkish Aerospace Industries — was found in Boeing and Airbus jets. Falsified certifications. Corrosion holes in the material. Boeing had to request titanium purchase documentation going back ten years from its suppliers. That's not a one-off scandal. That is a direct mechanical consequence of supply-chain strain. When qualified sources are tight, substitution pressure rises. In aerospace, substitution isn't a cost problem. It's a structural integrity problem.

I've watched tight supply chains produce exactly this pattern in other metals. The official market says everything is in spec. Then you find out someone three links down the chain decided to get creative with the paperwork. The incentive structure makes it inevitable. The tighter the supply, the higher the premium for cutting corners. Nobody at CNBC connects the counterfeit titanium investigation to the sponge production map. They're covering them as separate stories. They're the same story.

The sell-side reads the Grade 1 surplus and calls the titanium market "balanced." That's like calling a hospital fully stocked because the cafeteria has plenty of food. The operating room is out of sutures.

The sequence here is structural, not speculative. It doesn't need a crisis to trigger — just time and arithmetic.

If China adds titanium to its export control list — or simply slows approvals the way it did with gallium — Japanese sponge production takes the first hit. Osaka Titanium and Toho both import their titanium feedstock. A feedstock squeeze doesn't shut them down overnight. But it caps output precisely when expansion was supposed to begin. The 10,000 t/yr Osaka plant that was going to ease the shortage? It needs ore to run.

The defense side is where the math gets uncomfortable. Advanced fighters carry 20–42% titanium by structural weight. Every F-35 delivery, every next-gen engine program, every hypersonics prototype pulls from the same qualified sponge pool that commercial aviation is draining. The Pentagon doesn't get a separate pipeline. It shares the pipe — and the pipe is narrowing.

Where does capital position? Not in the OEMs. Boeing's commercial arm is still losing money — $885 million in operating losses through H1 2026. Airbus is capacity-constrained by its own supplier base. Both are too diversified and too levered to delivery-rate problems that predate the sponge issue.

The edge, if it exists, is upstream. ATI (NYSE: ATI) extended and expanded its long-term titanium supply agreement with Boeing in July 2025 — covering the full narrowbody and widebody suite. Precision Castparts Corp. operates TIMET, one of the few qualified Western melters. Both are toll-booth operators on a road that just got narrower. Every aircraft Boeing delivers for the next decade runs through their forging shops.

On the development side, IperionX (ASX: IPX) is commissioning a titanium manufacturing campus in Virginia using recycled titanium and novel processing — currently at 200 t/yr, targeting 1,400 t/yr by 2027 under government contract, 10,000 t/yr by 2030. It has over $70 million in US government backing including DPA Title III funding. That's still a rounding error against 44,000 tonnes of annual imports. But it's the only domestic game in town, and in January the Department of War shipped them 290 metric tons of titanium scrap to process.

Aerospace-grade sponge is tight now. Demand compounds at 7.7% annually. New qualified supply doesn't arrive until 2028. And the country that controls 69% of global output hasn't decided yet whether to weaponize the chokepoint.

The physical layer has already repriced — Grade 0 sponge holds firm at $7.40–7.60/kg while Grade 1 sags under surplus. The paper layer is still reading the aggregate production number and calling it a balanced market. I've watched that gap in other metals. It doesn't stay open.